55843353720 has 2016 divisors, whose sum is σ = 268467469200. Its totient is φ = 10346434560.

The previous prime is 55843353691. The next prime is 55843353751. The reversal of 55843353720 is 2735334855.

55843353720 is a `hidden beast` number, since 5 + 5 + 84 + 33 + 537 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 503 ways as a sum of consecutive naturals, for example, 2939123871 + ... + 2939123889.

Almost surely, 2^55843353720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55843353720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134233734600).

55843353720 is an abundant number, since it is smaller than the sum of its proper divisors (212624115480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55843353720 is a wasteful number, since it uses less digits than its factorization.

55843353720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 45.

The spelling of 55843353720 in words is "fifty-five billion, eight hundred forty-three million, three hundred fifty-three thousand, seven hundred twenty".